Refer to Figure 23-5. Suppose that an increase in government purchases by 50 causes the AD curve to shift to the right, as shown. The simple multiplier is ________ and the multiplier is ________.
Select one:
a. 6; 1.2
b. 2.8; 1.2
c. 4; 1.2
d. 4; 2.8
e. 4; 3.2